wlroots/types/wlr_seat.c

1227 lines
38 KiB
C

#define _POSIX_C_SOURCE 200809L
#include <assert.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <wayland-server.h>
#include <wlr/types/wlr_seat.h>
#include <wlr/types/wlr_input_device.h>
#include <wlr/util/log.h>
#include <wlr/types/wlr_data_device.h>
#include <wlr/types/wlr_primary_selection.h>
static void resource_destroy(struct wl_client *client,
struct wl_resource *resource) {
wl_resource_destroy(resource);
}
static void pointer_send_frame(struct wl_resource *resource) {
if (wl_resource_get_version(resource) >=
WL_POINTER_FRAME_SINCE_VERSION) {
wl_pointer_send_frame(resource);
}
}
static void wl_pointer_set_cursor(struct wl_client *client,
struct wl_resource *pointer_resource, uint32_t serial,
struct wl_resource *surface_resource,
int32_t hotspot_x, int32_t hotspot_y) {
struct wlr_seat_client *seat_client =
wl_resource_get_user_data(pointer_resource);
struct wlr_surface *surface = NULL;
if (surface_resource != NULL) {
surface = wl_resource_get_user_data(surface_resource);
if (wlr_surface_set_role(surface, "wl_pointer-cursor", surface_resource,
WL_POINTER_ERROR_ROLE) < 0) {
return;
}
}
struct wlr_seat_pointer_request_set_cursor_event *event =
calloc(1, sizeof(struct wlr_seat_pointer_request_set_cursor_event));
if (event == NULL) {
return;
}
event->seat_client = seat_client;
event->surface = surface;
event->serial = serial;
event->hotspot_x = hotspot_x;
event->hotspot_y = hotspot_y;
wl_signal_emit(&seat_client->seat->events.request_set_cursor, event);
free(event);
}
static const struct wl_pointer_interface wl_pointer_impl = {
.set_cursor = wl_pointer_set_cursor,
.release = resource_destroy,
};
static void wl_pointer_destroy(struct wl_resource *resource) {
wl_list_remove(wl_resource_get_link(resource));
}
static void wl_seat_get_pointer(struct wl_client *client,
struct wl_resource *seat_resource, uint32_t id) {
struct wlr_seat_client *seat_client =
wl_resource_get_user_data(seat_resource);
if (!(seat_client->seat->capabilities & WL_SEAT_CAPABILITY_POINTER)) {
return;
}
struct wl_resource *resource = wl_resource_create(client,
&wl_pointer_interface, wl_resource_get_version(seat_resource), id);
if (resource == NULL) {
wl_resource_post_no_memory(seat_resource);
return;
}
wl_resource_set_implementation(resource, &wl_pointer_impl, seat_client,
&wl_pointer_destroy);
wl_list_insert(&seat_client->pointers, wl_resource_get_link(resource));
}
static const struct wl_keyboard_interface wl_keyboard_impl = {
.release = resource_destroy,
};
static void wl_keyboard_destroy(struct wl_resource *resource) {
wl_list_remove(wl_resource_get_link(resource));
}
static void seat_client_send_keymap(struct wlr_seat_client *client,
struct wlr_keyboard *keyboard) {
if (!keyboard) {
return;
}
// TODO: We should probably lift all of the keys set by the other
// keyboard
struct wl_resource *resource;
wl_resource_for_each(resource, &client->keyboards) {
wl_keyboard_send_keymap(resource,
WL_KEYBOARD_KEYMAP_FORMAT_XKB_V1, keyboard->keymap_fd,
keyboard->keymap_size);
}
}
static void seat_client_send_repeat_info(struct wlr_seat_client *client,
struct wlr_keyboard *keyboard) {
if (!keyboard) {
return;
}
struct wl_resource *resource;
wl_resource_for_each(resource, &client->keyboards) {
if (wl_resource_get_version(resource) >=
WL_KEYBOARD_REPEAT_INFO_SINCE_VERSION) {
wl_keyboard_send_repeat_info(resource,
keyboard->repeat_info.rate, keyboard->repeat_info.delay);
}
}
}
static void wl_seat_get_keyboard(struct wl_client *client,
struct wl_resource *seat_resource, uint32_t id) {
struct wlr_seat_client *seat_client =
wl_resource_get_user_data(seat_resource);
if (!(seat_client->seat->capabilities & WL_SEAT_CAPABILITY_KEYBOARD)) {
return;
}
struct wl_resource *resource = wl_resource_create(client,
&wl_keyboard_interface, wl_resource_get_version(seat_resource), id);
if (resource == NULL) {
wl_resource_post_no_memory(seat_resource);
return;
}
wl_resource_set_implementation(resource, &wl_keyboard_impl, seat_client,
&wl_keyboard_destroy);
wl_list_insert(&seat_client->keyboards, wl_resource_get_link(resource));
struct wlr_keyboard *keyboard = seat_client->seat->keyboard_state.keyboard;
seat_client_send_keymap(seat_client, keyboard);
seat_client_send_repeat_info(seat_client, keyboard);
// TODO possibly handle the case where this keyboard needs an enter
// right away
}
static const struct wl_touch_interface wl_touch_impl = {
.release = resource_destroy,
};
static void wl_touch_destroy(struct wl_resource *resource) {
wl_list_remove(wl_resource_get_link(resource));
}
static void wl_seat_get_touch(struct wl_client *client,
struct wl_resource *seat_resource, uint32_t id) {
struct wlr_seat_client *seat_client =
wl_resource_get_user_data(seat_resource);
if (!(seat_client->seat->capabilities & WL_SEAT_CAPABILITY_TOUCH)) {
return;
}
struct wl_resource *resource = wl_resource_create(client,
&wl_touch_interface, wl_resource_get_version(seat_resource), id);
if (resource == NULL) {
wl_resource_post_no_memory(seat_resource);
return;
}
wl_resource_set_implementation(resource, &wl_touch_impl, seat_client,
&wl_touch_destroy);
wl_list_insert(&seat_client->touches, wl_resource_get_link(resource));
}
static void wlr_seat_client_resource_destroy(struct wl_resource *seat_resource) {
struct wlr_seat_client *client = wl_resource_get_user_data(seat_resource);
wl_signal_emit(&client->events.destroy, client);
if (client == client->seat->pointer_state.focused_client) {
client->seat->pointer_state.focused_client = NULL;
}
if (client == client->seat->keyboard_state.focused_client) {
client->seat->keyboard_state.focused_client = NULL;
}
struct wl_resource *resource, *tmp;
wl_resource_for_each_safe(resource, tmp, &client->pointers) {
wl_resource_destroy(resource);
}
wl_resource_for_each_safe(resource, tmp, &client->keyboards) {
wl_resource_destroy(resource);
}
wl_resource_for_each_safe(resource, tmp, &client->touches) {
wl_resource_destroy(resource);
}
wl_resource_for_each_safe(resource, tmp, &client->data_devices) {
wl_resource_destroy(resource);
}
wl_resource_for_each_safe(resource, tmp, &client->primary_selection_devices) {
wl_resource_destroy(resource);
}
wl_list_remove(&client->link);
free(client);
}
struct wl_seat_interface wl_seat_impl = {
.get_pointer = wl_seat_get_pointer,
.get_keyboard = wl_seat_get_keyboard,
.get_touch = wl_seat_get_touch,
.release = resource_destroy,
};
static void wl_seat_bind(struct wl_client *client, void *_wlr_seat,
uint32_t version, uint32_t id) {
struct wlr_seat *wlr_seat = _wlr_seat;
assert(client && wlr_seat);
struct wlr_seat_client *seat_client =
calloc(1, sizeof(struct wlr_seat_client));
if (seat_client == NULL) {
wl_client_post_no_memory(client);
return;
}
seat_client->wl_resource =
wl_resource_create(client, &wl_seat_interface, version, id);
if (seat_client->wl_resource == NULL) {
free(seat_client);
wl_client_post_no_memory(client);
return;
}
seat_client->client = client;
seat_client->seat = wlr_seat;
wl_list_init(&seat_client->pointers);
wl_list_init(&seat_client->keyboards);
wl_list_init(&seat_client->touches);
wl_list_init(&seat_client->data_devices);
wl_list_init(&seat_client->primary_selection_devices);
wl_resource_set_implementation(seat_client->wl_resource, &wl_seat_impl,
seat_client, wlr_seat_client_resource_destroy);
wl_list_insert(&wlr_seat->clients, &seat_client->link);
if (version >= WL_SEAT_NAME_SINCE_VERSION) {
wl_seat_send_name(seat_client->wl_resource, wlr_seat->name);
}
wl_seat_send_capabilities(seat_client->wl_resource, wlr_seat->capabilities);
wl_signal_init(&seat_client->events.destroy);
}
static void default_pointer_enter(struct wlr_seat_pointer_grab *grab,
struct wlr_surface *surface, double sx, double sy) {
wlr_seat_pointer_enter(grab->seat, surface, sx, sy);
}
static void default_pointer_motion(struct wlr_seat_pointer_grab *grab,
uint32_t time, double sx, double sy) {
wlr_seat_pointer_send_motion(grab->seat, time, sx, sy);
}
static uint32_t default_pointer_button(struct wlr_seat_pointer_grab *grab,
uint32_t time, uint32_t button, uint32_t state) {
return wlr_seat_pointer_send_button(grab->seat, time, button, state);
}
static void default_pointer_axis(struct wlr_seat_pointer_grab *grab,
uint32_t time, enum wlr_axis_orientation orientation, double value) {
wlr_seat_pointer_send_axis(grab->seat, time, orientation, value);
}
static void default_pointer_cancel(struct wlr_seat_pointer_grab *grab) {
// cannot be cancelled
}
static const struct wlr_pointer_grab_interface default_pointer_grab_impl = {
.enter = default_pointer_enter,
.motion = default_pointer_motion,
.button = default_pointer_button,
.axis = default_pointer_axis,
.cancel = default_pointer_cancel,
};
static void default_keyboard_enter(struct wlr_seat_keyboard_grab *grab,
struct wlr_surface *surface) {
wlr_seat_keyboard_enter(grab->seat, surface);
}
static void default_keyboard_key(struct wlr_seat_keyboard_grab *grab,
uint32_t time, uint32_t key, uint32_t state) {
wlr_seat_keyboard_send_key(grab->seat, time, key, state);
}
static void default_keyboard_modifiers(struct wlr_seat_keyboard_grab *grab) {
wlr_seat_keyboard_send_modifiers(grab->seat);
}
static void default_keyboard_cancel(struct wlr_seat_keyboard_grab *grab) {
// cannot be cancelled
}
static const struct wlr_keyboard_grab_interface default_keyboard_grab_impl = {
.enter = default_keyboard_enter,
.key = default_keyboard_key,
.modifiers = default_keyboard_modifiers,
.cancel = default_keyboard_cancel,
};
static uint32_t default_touch_down(struct wlr_seat_touch_grab *grab, uint32_t time,
struct wlr_touch_point *point) {
return wlr_seat_touch_send_down(grab->seat, point->surface, time,
point->touch_id, point->sx, point->sy);
}
static void default_touch_up(struct wlr_seat_touch_grab *grab, uint32_t time,
struct wlr_touch_point *point) {
wlr_seat_touch_send_up(grab->seat, time, point->touch_id);
}
static void default_touch_motion(struct wlr_seat_touch_grab *grab,
uint32_t time, struct wlr_touch_point *point) {
if (!point->focus_surface || point->focus_surface == point->surface) {
wlr_seat_touch_send_motion(grab->seat, time, point->touch_id, point->sx,
point->sy);
}
}
static void default_touch_enter(struct wlr_seat_touch_grab *grab,
uint32_t time, struct wlr_touch_point *point) {
// not handled by default
}
static void default_touch_cancel(struct wlr_seat_touch_grab *grab) {
// cannot be cancelled
}
static const struct wlr_touch_grab_interface default_touch_grab_impl = {
.down = default_touch_down,
.up = default_touch_up,
.motion = default_touch_motion,
.enter = default_touch_enter,
.cancel = default_touch_cancel,
};
void wlr_seat_destroy(struct wlr_seat *wlr_seat) {
if (!wlr_seat) {
return;
}
wl_list_remove(&wlr_seat->display_destroy.link);
struct wlr_seat_client *client, *tmp;
wl_list_for_each_safe(client, tmp, &wlr_seat->clients, link) {
// will destroy other resources as well
wl_resource_destroy(client->wl_resource);
}
wl_global_destroy(wlr_seat->wl_global);
free(wlr_seat->pointer_state.default_grab);
free(wlr_seat->keyboard_state.default_grab);
free(wlr_seat->touch_state.default_grab);
free(wlr_seat->data_device);
free(wlr_seat->name);
free(wlr_seat);
}
static void handle_display_destroy(struct wl_listener *listener, void *data) {
struct wlr_seat *seat =
wl_container_of(listener, seat, display_destroy);
wlr_seat_destroy(seat);
}
struct wlr_seat *wlr_seat_create(struct wl_display *display, const char *name) {
struct wlr_seat *wlr_seat = calloc(1, sizeof(struct wlr_seat));
if (!wlr_seat) {
return NULL;
}
// pointer state
wlr_seat->pointer_state.seat = wlr_seat;
wl_list_init(&wlr_seat->pointer_state.surface_destroy.link);
wl_list_init(&wlr_seat->pointer_state.resource_destroy.link);
struct wlr_seat_pointer_grab *pointer_grab =
calloc(1, sizeof(struct wlr_seat_pointer_grab));
if (!pointer_grab) {
free(wlr_seat);
return NULL;
}
pointer_grab->interface = &default_pointer_grab_impl;
pointer_grab->seat = wlr_seat;
wlr_seat->pointer_state.default_grab = pointer_grab;
wlr_seat->pointer_state.grab = pointer_grab;
// keyboard state
struct wlr_seat_keyboard_grab *keyboard_grab =
calloc(1, sizeof(struct wlr_seat_keyboard_grab));
if (!keyboard_grab) {
free(pointer_grab);
free(wlr_seat);
return NULL;
}
keyboard_grab->interface = &default_keyboard_grab_impl;
keyboard_grab->seat = wlr_seat;
wlr_seat->keyboard_state.default_grab = keyboard_grab;
wlr_seat->keyboard_state.grab = keyboard_grab;
wlr_seat->keyboard_state.seat = wlr_seat;
wl_list_init(&wlr_seat->keyboard_state.resource_destroy.link);
wl_list_init(
&wlr_seat->keyboard_state.surface_destroy.link);
// touch state
struct wlr_seat_touch_grab *touch_grab =
calloc(1, sizeof(struct wlr_seat_touch_grab));
if (!touch_grab) {
free(pointer_grab);
free(keyboard_grab);
free(wlr_seat);
return NULL;
}
touch_grab->interface = &default_touch_grab_impl;
touch_grab->seat = wlr_seat;
wlr_seat->touch_state.default_grab = touch_grab;
wlr_seat->touch_state.grab = touch_grab;
wlr_seat->touch_state.seat = wlr_seat;
wl_list_init(&wlr_seat->touch_state.touch_points);
struct wl_global *wl_global = wl_global_create(display,
&wl_seat_interface, 6, wlr_seat, wl_seat_bind);
if (!wl_global) {
free(wlr_seat);
return NULL;
}
wlr_seat->wl_global = wl_global;
wlr_seat->display = display;
wlr_seat->name = strdup(name);
wl_list_init(&wlr_seat->clients);
wl_list_init(&wlr_seat->drag_icons);
wl_signal_init(&wlr_seat->events.request_set_cursor);
wl_signal_init(&wlr_seat->events.selection);
wl_signal_init(&wlr_seat->events.primary_selection);
wl_signal_init(&wlr_seat->events.pointer_grab_begin);
wl_signal_init(&wlr_seat->events.pointer_grab_end);
wl_signal_init(&wlr_seat->events.keyboard_grab_begin);
wl_signal_init(&wlr_seat->events.keyboard_grab_end);
wl_signal_init(&wlr_seat->events.touch_grab_begin);
wl_signal_init(&wlr_seat->events.touch_grab_end);
wlr_seat->display_destroy.notify = handle_display_destroy;
wl_display_add_destroy_listener(display, &wlr_seat->display_destroy);
return wlr_seat;
}
struct wlr_seat_client *wlr_seat_client_for_wl_client(struct wlr_seat *wlr_seat,
struct wl_client *wl_client) {
assert(wlr_seat);
struct wlr_seat_client *seat_client;
wl_list_for_each(seat_client, &wlr_seat->clients, link) {
if (seat_client->client == wl_client) {
return seat_client;
}
}
return NULL;
}
void wlr_seat_set_capabilities(struct wlr_seat *wlr_seat,
uint32_t capabilities) {
wlr_seat->capabilities = capabilities;
struct wlr_seat_client *client;
wl_list_for_each(client, &wlr_seat->clients, link) {
wl_seat_send_capabilities(client->wl_resource, capabilities);
}
}
void wlr_seat_set_name(struct wlr_seat *wlr_seat, const char *name) {
free(wlr_seat->name);
wlr_seat->name = strdup(name);
struct wlr_seat_client *client;
wl_list_for_each(client, &wlr_seat->clients, link) {
wl_seat_send_name(client->wl_resource, name);
}
}
bool wlr_seat_pointer_surface_has_focus(struct wlr_seat *wlr_seat,
struct wlr_surface *surface) {
return surface == wlr_seat->pointer_state.focused_surface;
}
static void pointer_surface_destroy_notify(struct wl_listener *listener,
void *data) {
struct wlr_seat_pointer_state *state = wl_container_of(
listener, state, surface_destroy);
wl_list_remove(&state->surface_destroy.link);
wl_list_init(&state->surface_destroy.link);
wlr_seat_pointer_clear_focus(state->seat);
}
static void pointer_resource_destroy_notify(struct wl_listener *listener,
void *data) {
struct wlr_seat_pointer_state *state = wl_container_of(
listener, state, resource_destroy);
wl_list_remove(&state->resource_destroy.link);
wl_list_init(&state->resource_destroy.link);
wlr_seat_pointer_clear_focus(state->seat);
}
void wlr_seat_pointer_enter(struct wlr_seat *wlr_seat,
struct wlr_surface *surface, double sx, double sy) {
assert(wlr_seat);
if (wlr_seat->pointer_state.focused_surface == surface) {
// this surface already got an enter notify
return;
}
struct wlr_seat_client *client = NULL;
if (surface) {
struct wl_client *wl_client = wl_resource_get_client(surface->resource);
client = wlr_seat_client_for_wl_client(wlr_seat, wl_client);
}
struct wlr_seat_client *focused_client =
wlr_seat->pointer_state.focused_client;
struct wlr_surface *focused_surface =
wlr_seat->pointer_state.focused_surface;
// leave the previously entered surface
if (focused_client != NULL && focused_surface != NULL) {
uint32_t serial = wl_display_next_serial(wlr_seat->display);
struct wl_resource *resource;
wl_resource_for_each(resource, &focused_client->pointers) {
wl_pointer_send_leave(resource, serial, focused_surface->resource);
pointer_send_frame(resource);
}
}
// enter the current surface
if (client != NULL && surface != NULL) {
uint32_t serial = wl_display_next_serial(wlr_seat->display);
struct wl_resource *resource;
wl_resource_for_each(resource, &client->pointers) {
wl_pointer_send_enter(resource, serial, surface->resource,
wl_fixed_from_double(sx), wl_fixed_from_double(sy));
pointer_send_frame(resource);
}
}
// reinitialize the focus destroy events
wl_list_remove(&wlr_seat->pointer_state.surface_destroy.link);
wl_list_init(&wlr_seat->pointer_state.surface_destroy.link);
wl_list_remove(&wlr_seat->pointer_state.resource_destroy.link);
wl_list_init(&wlr_seat->pointer_state.resource_destroy.link);
if (surface != NULL) {
wl_signal_add(&surface->events.destroy,
&wlr_seat->pointer_state.surface_destroy);
wl_resource_add_destroy_listener(surface->resource,
&wlr_seat->pointer_state.resource_destroy);
wlr_seat->pointer_state.resource_destroy.notify =
pointer_resource_destroy_notify;
wlr_seat->pointer_state.surface_destroy.notify =
pointer_surface_destroy_notify;
}
wlr_seat->pointer_state.focused_client = client;
wlr_seat->pointer_state.focused_surface = surface;
// TODO: send focus change event
}
void wlr_seat_pointer_clear_focus(struct wlr_seat *wlr_seat) {
wlr_seat_pointer_enter(wlr_seat, NULL, 0, 0);
}
void wlr_seat_pointer_send_motion(struct wlr_seat *wlr_seat, uint32_t time,
double sx, double sy) {
struct wlr_seat_client *client = wlr_seat->pointer_state.focused_client;
if (client == NULL) {
return;
}
struct wl_resource *resource;
wl_resource_for_each(resource, &client->pointers) {
wl_pointer_send_motion(resource, time, wl_fixed_from_double(sx),
wl_fixed_from_double(sy));
pointer_send_frame(resource);
}
}
uint32_t wlr_seat_pointer_send_button(struct wlr_seat *wlr_seat, uint32_t time,
uint32_t button, uint32_t state) {
struct wlr_seat_client *client = wlr_seat->pointer_state.focused_client;
if (client == NULL) {
return 0;
}
uint32_t serial = wl_display_next_serial(wlr_seat->display);
struct wl_resource *resource;
wl_resource_for_each(resource, &client->pointers) {
wl_pointer_send_button(resource, serial, time, button, state);
pointer_send_frame(resource);
}
return serial;
}
void wlr_seat_pointer_send_axis(struct wlr_seat *wlr_seat, uint32_t time,
enum wlr_axis_orientation orientation, double value) {
struct wlr_seat_client *client = wlr_seat->pointer_state.focused_client;
if (client == NULL) {
return;
}
struct wl_resource *resource;
wl_resource_for_each(resource, &client->pointers) {
if (value) {
wl_pointer_send_axis(resource, time, orientation,
wl_fixed_from_double(value));
} else if (wl_resource_get_version(resource) >=
WL_POINTER_AXIS_STOP_SINCE_VERSION) {
wl_pointer_send_axis_stop(resource, time, orientation);
}
pointer_send_frame(resource);
}
}
void wlr_seat_pointer_start_grab(struct wlr_seat *wlr_seat,
struct wlr_seat_pointer_grab *grab) {
assert(wlr_seat);
grab->seat = wlr_seat;
assert(grab->seat);
wlr_seat->pointer_state.grab = grab;
wl_signal_emit(&wlr_seat->events.pointer_grab_begin, grab);
}
void wlr_seat_pointer_end_grab(struct wlr_seat *wlr_seat) {
struct wlr_seat_pointer_grab *grab = wlr_seat->pointer_state.grab;
if (grab != wlr_seat->pointer_state.default_grab) {
wlr_seat->pointer_state.grab = wlr_seat->pointer_state.default_grab;
wl_signal_emit(&wlr_seat->events.pointer_grab_end, grab);
if (grab->interface->cancel) {
grab->interface->cancel(grab);
}
}
}
void wlr_seat_pointer_notify_enter(struct wlr_seat *wlr_seat,
struct wlr_surface *surface, double sx, double sy) {
struct wlr_seat_pointer_grab *grab = wlr_seat->pointer_state.grab;
grab->interface->enter(grab, surface, sx, sy);
}
void wlr_seat_pointer_notify_motion(struct wlr_seat *wlr_seat, uint32_t time,
double sx, double sy) {
clock_gettime(CLOCK_MONOTONIC, &wlr_seat->last_event);
struct wlr_seat_pointer_grab *grab = wlr_seat->pointer_state.grab;
grab->interface->motion(grab, time, sx, sy);
}
uint32_t wlr_seat_pointer_notify_button(struct wlr_seat *wlr_seat,
uint32_t time, uint32_t button, uint32_t state) {
clock_gettime(CLOCK_MONOTONIC, &wlr_seat->last_event);
if (state == WL_POINTER_BUTTON_STATE_PRESSED) {
if (wlr_seat->pointer_state.button_count == 0) {
wlr_seat->pointer_state.grab_button = button;
wlr_seat->pointer_state.grab_time = time;
}
wlr_seat->pointer_state.button_count++;
} else {
wlr_seat->pointer_state.button_count--;
}
struct wlr_seat_pointer_grab *grab = wlr_seat->pointer_state.grab;
uint32_t serial = grab->interface->button(grab, time, button, state);
if (serial && wlr_seat->pointer_state.button_count == 1) {
wlr_seat->pointer_state.grab_serial = serial;
}
return serial;
}
void wlr_seat_pointer_notify_axis(struct wlr_seat *wlr_seat, uint32_t time,
enum wlr_axis_orientation orientation, double value) {
clock_gettime(CLOCK_MONOTONIC, &wlr_seat->last_event);
struct wlr_seat_pointer_grab *grab = wlr_seat->pointer_state.grab;
grab->interface->axis(grab, time, orientation, value);
}
bool wlr_seat_pointer_has_grab(struct wlr_seat *seat) {
return seat->pointer_state.grab->interface != &default_pointer_grab_impl;
}
void wlr_seat_keyboard_send_key(struct wlr_seat *wlr_seat, uint32_t time,
uint32_t key, uint32_t state) {
struct wlr_seat_client *client = wlr_seat->keyboard_state.focused_client;
if (!client) {
return;
}
uint32_t serial = wl_display_next_serial(wlr_seat->display);
struct wl_resource *resource;
wl_resource_for_each(resource, &client->keyboards) {
wl_keyboard_send_key(resource, serial, time, key, state);
}
}
static void handle_keyboard_keymap(struct wl_listener *listener, void *data) {
struct wlr_seat_keyboard_state *state =
wl_container_of(listener, state, keyboard_keymap);
struct wlr_seat_client *client;
struct wlr_keyboard *keyboard = data;
if (keyboard == state->keyboard) {
wl_list_for_each(client, &state->seat->clients, link) {
seat_client_send_keymap(client, state->keyboard);
}
}
}
static void handle_keyboard_repeat_info(struct wl_listener *listener,
void *data) {
struct wlr_seat_keyboard_state *state =
wl_container_of(listener, state, keyboard_repeat_info);
struct wlr_seat_client *client;
wl_list_for_each(client, &state->seat->clients, link) {
seat_client_send_repeat_info(client, state->keyboard);
}
}
static void handle_keyboard_destroy(struct wl_listener *listener, void *data) {
struct wlr_seat_keyboard_state *state =
wl_container_of(listener, state, keyboard_destroy);
state->keyboard = NULL;
}
void wlr_seat_set_keyboard(struct wlr_seat *seat,
struct wlr_input_device *device) {
// TODO call this on device key event before the event reaches the
// compositor and set a pending keyboard and then send the new keyboard
// state on the next keyboard notify event.
struct wlr_keyboard *keyboard = (device ? device->keyboard : NULL);
if (seat->keyboard_state.keyboard == keyboard) {
return;
}
if (seat->keyboard_state.keyboard) {
wl_list_remove(&seat->keyboard_state.keyboard_destroy.link);
wl_list_remove(&seat->keyboard_state.keyboard_keymap.link);
wl_list_remove(&seat->keyboard_state.keyboard_repeat_info.link);
seat->keyboard_state.keyboard = NULL;
}
if (keyboard) {
assert(device->type == WLR_INPUT_DEVICE_KEYBOARD);
wl_signal_add(&device->events.destroy,
&seat->keyboard_state.keyboard_destroy);
seat->keyboard_state.keyboard_destroy.notify = handle_keyboard_destroy;
wl_signal_add(&device->keyboard->events.keymap,
&seat->keyboard_state.keyboard_keymap);
seat->keyboard_state.keyboard_keymap.notify = handle_keyboard_keymap;
wl_signal_add(&device->keyboard->events.repeat_info,
&seat->keyboard_state.keyboard_repeat_info);
seat->keyboard_state.keyboard_repeat_info.notify =
handle_keyboard_repeat_info;
struct wlr_seat_client *client;
wl_list_for_each(client, &seat->clients, link) {
seat_client_send_keymap(client, device->keyboard);
seat_client_send_repeat_info(client, device->keyboard);
}
}
seat->keyboard_state.keyboard = keyboard;
}
void wlr_seat_keyboard_start_grab(struct wlr_seat *wlr_seat,
struct wlr_seat_keyboard_grab *grab) {
grab->seat = wlr_seat;
wlr_seat->keyboard_state.grab = grab;
wl_signal_emit(&wlr_seat->events.keyboard_grab_begin, grab);
}
void wlr_seat_keyboard_end_grab(struct wlr_seat *wlr_seat) {
struct wlr_seat_keyboard_grab *grab = wlr_seat->keyboard_state.grab;
if (grab != wlr_seat->keyboard_state.default_grab) {
wlr_seat->keyboard_state.grab = wlr_seat->keyboard_state.default_grab;
wl_signal_emit(&wlr_seat->events.keyboard_grab_end, grab);
if (grab->interface->cancel) {
grab->interface->cancel(grab);
}
}
}
static void keyboard_surface_destroy_notify(struct wl_listener *listener,
void *data) {
struct wlr_seat_keyboard_state *state = wl_container_of(
listener, state, surface_destroy);
wl_list_remove(&state->surface_destroy.link);
wl_list_init(&state->surface_destroy.link);
wlr_seat_keyboard_clear_focus(state->seat);
}
static void keyboard_resource_destroy_notify(struct wl_listener *listener,
void *data) {
struct wlr_seat_keyboard_state *state = wl_container_of(
listener, state, resource_destroy);
wl_list_remove(&state->resource_destroy.link);
wl_list_init(&state->resource_destroy.link);
wlr_seat_keyboard_clear_focus(state->seat);
}
void wlr_seat_keyboard_send_modifiers(struct wlr_seat *seat) {
struct wlr_seat_client *client = seat->keyboard_state.focused_client;
if (client == NULL) {
return;
}
struct wlr_keyboard *keyboard = seat->keyboard_state.keyboard;
if (keyboard == NULL) {
return;
}
uint32_t serial = wl_display_next_serial(seat->display);
struct wl_resource *resource;
wl_resource_for_each(resource, &client->keyboards) {
wl_keyboard_send_modifiers(resource, serial,
keyboard->modifiers.depressed, keyboard->modifiers.latched,
keyboard->modifiers.locked, keyboard->modifiers.group);
}
}
void wlr_seat_keyboard_enter(struct wlr_seat *seat,
struct wlr_surface *surface) {
if (seat->keyboard_state.focused_surface == surface) {
// this surface already got an enter notify
return;
}
struct wlr_seat_client *client = NULL;
if (surface) {
struct wl_client *wl_client = wl_resource_get_client(surface->resource);
client = wlr_seat_client_for_wl_client(seat, wl_client);
}
struct wlr_seat_client *focused_client =
seat->keyboard_state.focused_client;
struct wlr_surface *focused_surface =
seat->keyboard_state.focused_surface;
// leave the previously entered surface
if (focused_client != NULL && focused_surface != NULL) {
uint32_t serial = wl_display_next_serial(seat->display);
struct wl_resource *resource;
wl_resource_for_each(resource, &focused_client->keyboards) {
wl_keyboard_send_leave(resource, serial, focused_surface->resource);
}
}
// enter the current surface
if (client != NULL && seat->keyboard_state.keyboard != NULL) {
struct wlr_keyboard *keyboard = seat->keyboard_state.keyboard;
struct wl_array keys;
wl_array_init(&keys);
for (size_t i = 0; i < keyboard->num_keycodes; ++i) {
uint32_t *p = wl_array_add(&keys, sizeof(uint32_t));
if (!p) {
wlr_log(L_ERROR, "Cannot allocate memory, skipping keycode: %d\n",
keyboard->keycodes[i]);
continue;
}
*p = keyboard->keycodes[i];
}
uint32_t serial = wl_display_next_serial(seat->display);
struct wl_resource *resource;
wl_resource_for_each(resource, &client->keyboards) {
wl_keyboard_send_enter(resource, serial, surface->resource, &keys);
}
wl_array_release(&keys);
wlr_seat_client_send_selection(client);
wlr_seat_client_send_primary_selection(client);
}
// reinitialize the focus destroy events
wl_list_remove(&seat->keyboard_state.surface_destroy.link);
wl_list_init(&seat->keyboard_state.surface_destroy.link);
wl_list_remove(&seat->keyboard_state.resource_destroy.link);
wl_list_init(&seat->keyboard_state.resource_destroy.link);
if (surface) {
wl_signal_add(&surface->events.destroy,
&seat->keyboard_state.surface_destroy);
wl_resource_add_destroy_listener(surface->resource,
&seat->keyboard_state.resource_destroy);
seat->keyboard_state.resource_destroy.notify =
keyboard_resource_destroy_notify;
seat->keyboard_state.surface_destroy.notify =
keyboard_surface_destroy_notify;
}
seat->keyboard_state.focused_client = client;
seat->keyboard_state.focused_surface = surface;
if (client != NULL && seat->keyboard_state.keyboard != NULL) {
// tell new client about any modifier change last,
// as it targets seat->keyboard_state.focused_client
wlr_seat_keyboard_send_modifiers(seat);
}
}
void wlr_seat_keyboard_notify_enter(struct wlr_seat *seat, struct
wlr_surface *surface) {
struct wlr_seat_keyboard_grab *grab = seat->keyboard_state.grab;
grab->interface->enter(grab, surface);
}
void wlr_seat_keyboard_clear_focus(struct wlr_seat *seat) {
struct wl_array keys;
wl_array_init(&keys);
wlr_seat_keyboard_enter(seat, NULL);
}
bool wlr_seat_keyboard_has_grab(struct wlr_seat *seat) {
return seat->keyboard_state.grab->interface != &default_keyboard_grab_impl;
}
void wlr_seat_keyboard_notify_modifiers(struct wlr_seat *seat) {
clock_gettime(CLOCK_MONOTONIC, &seat->last_event);
struct wlr_seat_keyboard_grab *grab = seat->keyboard_state.grab;
grab->interface->modifiers(grab);
}
void wlr_seat_keyboard_notify_key(struct wlr_seat *seat, uint32_t time,
uint32_t key, uint32_t state) {
clock_gettime(CLOCK_MONOTONIC, &seat->last_event);
struct wlr_seat_keyboard_grab *grab = seat->keyboard_state.grab;
grab->interface->key(grab, time, key, state);
}
void wlr_seat_touch_start_grab(struct wlr_seat *wlr_seat,
struct wlr_seat_touch_grab *grab) {
grab->seat = wlr_seat;
wlr_seat->touch_state.grab = grab;
wl_signal_emit(&wlr_seat->events.touch_grab_begin, grab);
}
void wlr_seat_touch_end_grab(struct wlr_seat *wlr_seat) {
struct wlr_seat_touch_grab *grab = wlr_seat->touch_state.grab;
if (grab != wlr_seat->touch_state.default_grab) {
wlr_seat->touch_state.grab = wlr_seat->touch_state.default_grab;
wl_signal_emit(&wlr_seat->events.touch_grab_end, grab);
if (grab->interface->cancel) {
grab->interface->cancel(grab);
}
}
}
static void touch_point_clear_focus(struct wlr_touch_point *point) {
if (point->focus_surface) {
wl_list_remove(&point->focus_surface_destroy.link);
point->focus_client = NULL;
point->focus_surface = NULL;
}
}
static void touch_point_destroy(struct wlr_touch_point *point) {
wl_signal_emit(&point->events.destroy, point);
touch_point_clear_focus(point);
wl_list_remove(&point->surface_destroy.link);
wl_list_remove(&point->resource_destroy.link);
wl_list_remove(&point->link);
free(point);
}
static void handle_touch_point_resource_destroy(struct wl_listener *listener,
void *data) {
struct wlr_touch_point *point =
wl_container_of(listener, point, resource_destroy);
touch_point_destroy(point);
}
static void handle_touch_point_surface_destroy(struct wl_listener *listener,
void *data) {
struct wlr_touch_point *point =
wl_container_of(listener, point, surface_destroy);
touch_point_destroy(point);
}
static struct wlr_touch_point *touch_point_create(
struct wlr_seat *seat, int32_t touch_id,
struct wlr_surface *surface, double sx, double sy) {
struct wl_client *wl_client = wl_resource_get_client(surface->resource);
struct wlr_seat_client *client = wlr_seat_client_for_wl_client(seat, wl_client);
if (client == NULL || wl_list_empty(&client->touches)) {
// touch points are not valid without a connected client with touch
return NULL;
}
struct wlr_touch_point *point = calloc(1, sizeof(struct wlr_touch_point));
if (!point) {
return NULL;
}
point->touch_id = touch_id;
point->surface = surface;
point->client = client;
point->sx = sx;
point->sy = sy;
wl_signal_init(&point->events.destroy);
wl_signal_add(&surface->events.destroy, &point->surface_destroy);
point->surface_destroy.notify = handle_touch_point_surface_destroy;
wl_resource_add_destroy_listener(surface->resource,
&point->resource_destroy);
point->resource_destroy.notify = handle_touch_point_resource_destroy;
wl_list_insert(&seat->touch_state.touch_points, &point->link);
return point;
}
struct wlr_touch_point *wlr_seat_touch_get_point(
struct wlr_seat *seat, int32_t touch_id) {
struct wlr_touch_point *point = NULL;
wl_list_for_each(point, &seat->touch_state.touch_points, link) {
if (point->touch_id == touch_id) {
return point;
}
}
return NULL;
}
uint32_t wlr_seat_touch_notify_down(struct wlr_seat *seat,
struct wlr_surface *surface, uint32_t time, int32_t touch_id, double sx,
double sy) {
clock_gettime(CLOCK_MONOTONIC, &seat->last_event);
struct wlr_seat_touch_grab *grab = seat->touch_state.grab;
struct wlr_touch_point *point =
touch_point_create(seat, touch_id, surface, sx, sy);
if (!point) {
wlr_log(L_ERROR, "could not create touch point");
return 0;
}
uint32_t serial = grab->interface->down(grab, time, point);
if (serial && wlr_seat_touch_num_points(seat) == 1) {
seat->touch_state.grab_serial = serial;
seat->touch_state.grab_id = touch_id;
}
return serial;
}
void wlr_seat_touch_notify_up(struct wlr_seat *seat, uint32_t time,
int32_t touch_id) {
clock_gettime(CLOCK_MONOTONIC, &seat->last_event);
struct wlr_seat_touch_grab *grab = seat->touch_state.grab;
struct wlr_touch_point *point = wlr_seat_touch_get_point(seat, touch_id);
if (!point) {
wlr_log(L_ERROR, "got touch up for unknown touch point");
return;
}
grab->interface->up(grab, time, point);
touch_point_destroy(point);
}
void wlr_seat_touch_notify_motion(struct wlr_seat *seat, uint32_t time,
int32_t touch_id, double sx, double sy) {
clock_gettime(CLOCK_MONOTONIC, &seat->last_event);
struct wlr_seat_touch_grab *grab = seat->touch_state.grab;
struct wlr_touch_point *point = wlr_seat_touch_get_point(seat, touch_id);
if (!point) {
wlr_log(L_ERROR, "got touch motion for unknown touch point");
return;
}
point->sx = sx;
point->sy = sy;
grab->interface->motion(grab, time, point);
}
static void handle_point_focus_destroy(struct wl_listener *listener,
void *data) {
struct wlr_touch_point *point =
wl_container_of(listener, point, focus_surface_destroy);
touch_point_clear_focus(point);
}
static void touch_point_set_focus(struct wlr_touch_point *point,
struct wlr_surface *surface, double sx, double sy) {
if (point->focus_surface == surface) {
return;
}
touch_point_clear_focus(point);
if (surface && surface->resource) {
struct wlr_seat_client *client =
wlr_seat_client_for_wl_client(point->client->seat,
wl_resource_get_client(surface->resource));
if (client && !wl_list_empty(&client->touches)) {
wl_signal_add(&surface->events.destroy, &point->focus_surface_destroy);
point->focus_surface_destroy.notify = handle_point_focus_destroy;
point->focus_surface = surface;
point->focus_client = client;
point->sx = sx;
point->sy = sy;
}
}
}
void wlr_seat_touch_point_focus(struct wlr_seat *seat,
struct wlr_surface *surface, uint32_t time, int32_t touch_id, double sx,
double sy) {
assert(surface);
struct wlr_touch_point *point = wlr_seat_touch_get_point(seat, touch_id);
if (!point) {
wlr_log(L_ERROR, "got touch point focus for unknown touch point");
return;
}
struct wlr_surface *focus = point->focus_surface;
touch_point_set_focus(point, surface, sx, sy);
if (focus != point->focus_surface) {
struct wlr_seat_touch_grab *grab = seat->touch_state.grab;
grab->interface->enter(grab, time, point);
}
}
void wlr_seat_touch_point_clear_focus(struct wlr_seat *seat, uint32_t time,
int32_t touch_id) {
struct wlr_touch_point *point = wlr_seat_touch_get_point(seat, touch_id);
if (!point) {
wlr_log(L_ERROR, "got touch point focus for unknown touch point");
return;
}
touch_point_clear_focus(point);
}
uint32_t wlr_seat_touch_send_down(struct wlr_seat *seat,
struct wlr_surface *surface, uint32_t time, int32_t touch_id, double sx,
double sy) {
struct wlr_touch_point *point = wlr_seat_touch_get_point(seat, touch_id);
if (!point) {
wlr_log(L_ERROR, "got touch down for unknown touch point");
return 0;
}
uint32_t serial = wl_display_next_serial(seat->display);
struct wl_resource *resource;
wl_resource_for_each(resource, &point->client->touches) {
wl_touch_send_down(resource, serial, time, surface->resource,
touch_id, wl_fixed_from_double(sx), wl_fixed_from_double(sy));
wl_touch_send_frame(resource);
}
return serial;
}
void wlr_seat_touch_send_up(struct wlr_seat *seat, uint32_t time, int32_t touch_id) {
struct wlr_touch_point *point = wlr_seat_touch_get_point(seat, touch_id);
if (!point) {
wlr_log(L_ERROR, "got touch up for unknown touch point");
return;
}
uint32_t serial = wl_display_next_serial(seat->display);
struct wl_resource *resource;
wl_resource_for_each(resource, &point->client->touches) {
wl_touch_send_up(resource, serial, time, touch_id);
wl_touch_send_frame(resource);
}
}
void wlr_seat_touch_send_motion(struct wlr_seat *seat, uint32_t time, int32_t touch_id,
double sx, double sy) {
struct wlr_touch_point *point = wlr_seat_touch_get_point(seat, touch_id);
if (!point) {
wlr_log(L_ERROR, "got touch motion for unknown touch point");
return;
}
struct wl_resource *resource;
wl_resource_for_each(resource, &point->client->touches) {
wl_touch_send_motion(resource, time, touch_id, wl_fixed_from_double(sx),
wl_fixed_from_double(sy));
wl_touch_send_frame(resource);
}
}
int wlr_seat_touch_num_points(struct wlr_seat *seat) {
return wl_list_length(&seat->touch_state.touch_points);
}
bool wlr_seat_touch_has_grab(struct wlr_seat *seat) {
return seat->touch_state.grab->interface != &default_touch_grab_impl;
}
bool wlr_seat_validate_grab_serial(struct wlr_seat *seat, uint32_t serial) {
return serial == seat->pointer_state.grab_serial ||
serial == seat->touch_state.grab_serial;
}